Gearing.



- n 705,492. 'Patanted July 22-, I902.

. W. L. V038.-

GEARING.

Applicafion flled July 9, 1901.) (No Ilqdel.)

WITNESSES: IN VENTOR "my r1? ATTOHNE rs THE non ms ps'rzns co. mowmnu" WASHINGTON. o. c

UNITED STATES PATENT OFFICE."

WILLIAM L. VOSS, OF HARVEY, ILLINOIS.

GEARING.

SPECIFICATION forming part of Letters Patent No. 705,492, dated July 22, 1902.

Application filed July 2,1901.

apparatus, as willjbe'appar'ent hereinafter.

This specification is a specific description of one form of theinvention, while the claims are definitions of the actual scope thereof Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both views.

Figure 1 is a plan View of the invention, and Fig. 2isasectional side elevation thereof. or. represents the element to be driven,whioh is here shown as a wheel or drum fastened on a shaft b, which in turnis revolubly carried .in suitable frame elements 0.

11 represents a spur-gear fast to the shaft 1) and in mesh with a pinione, fastened on a shaft f, revolubly mounted'in the frame 0. The shaft fis provided with asheave f, adapted to carry a drive-chain, and it is also fitted with a friction device g, whichprevents idle rotation of the shaft. The friction device '9 may be of any form desired. It is here illustrated asa drum adapted to be engaged by a brakestrap. v

h represents a shaft revolubly mounted in the frame below the shafts b and f and having a sheave h to carry a drive-chain. Fastened to the shaft is a pinion '5, in mesh with a spur-gear k, which is threaded on a sleeve Z, fitted loosely on the shaft f and mounted to turn freely in a part of the frame a. The sleeve Z has at itsinner end a flange Z, which is adapted to coactwith a collar f fastened on the shaft f. The outer end of the shaft f has a collar f adapted to coact with the hub of the spur-gear k.

1n represents a friction device connected between a part of the frame 0 and the sleeve Z and serving to prevent idle rotation of the latter.

h is the low-speed drive-pulley, and f the high-speed drive-pulley. To drive the ele- Serial No. 66,818. (No model.)

menta at low speed, the shaft it should be turned so as to cause the spur It to screw outward (to the-left in Fig. 2) on the sleeve Z. This binds the flange Z against the collar f and the hub of the spur-gear against the collar f During the screwing movement of the spur-gear k the friction device m holds the sleevel and prevents-idle rotation thereof.

.When the part I is properly engaged with the collar f the spur-gear 70 will then be rendered fast 011 the shaft f, and the movement of the shaft it will be transmitted first to the shaft f and then to the shaft 1). To drive at high speed, the movement of the shaft hshould be slightly reversed, so as to return the spurgear is to its inactive position-that is to say, to screw it back onthe sleeve Zthus disengaging the flange Z from the collar f and the spur-gear 7c from the pulley f. Then by applying movement to the collar f the shaft f may be driven directly, and through the gears e and d the shaft b is driven.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination with the element to be driven, of adrive-shaft geared directly thereto,,asecond drive-shaft independent of the first, and gearing connecting the two driveshafts, saidgearing embodying a clutch an tomatically operative upon the movement of the second'shaft, whereby to connect or disconnect the shafts.

2. The combination of a rotary shaft, a sleeve mounted loosely thereon,a rotary member threaded on the sleeve and capable of movement to bind itself and the sleeve be tween two parts on the shaft, and means for driving said rotary member.

3. The combination of a revoluble shaft, a sleeve mounted loosely thereon, collars fastened to the shaft and between whichcollars the sleeve is located, arotary member threaded on the sleeve, and means for driving the rotary member.

4;. The combination with an elementto be driven, of a shaft fastened thereto,a sec0nd shaft geared with the first-named shaft, a sleeve mounted loosely on the second, shaft, collars fastened to the second shaftiand between .which collars the sleeve is located, a gear threaded on, the sleeve at one end thereof, anda rotary driving member transmitting forming a clutch for completing the connec- 1o movement to the gear. tion between the two shaft-s.

5. The combination with the element to be In testimony whereof I have signed my driven of a drive-shaft geared directly therename to this specification in the presence of 5 to, a second drive-shaft independent of the two subscribing witnesses.

first, and gearing for transmitting from the XVILLIAM L. VOSS.

second to the first drive-shaft, said gearing Witnesses: embodying a. threaded member operative by GEO. E. TISSEN,

the turning of the second drive-shaft and GEORGE A. MAHAN. 

